145076401 has 4 divisors (see below), whose sum is σ = 146572132. Its totient is φ = 143580672.

The previous prime is 145076389. The next prime is 145076413. The reversal of 145076401 is 104670541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104670541 = 29 ⋅3609329.

It is an interprime number because it is at equal distance from previous prime (145076389) and next prime (145076413).

It can be written as a sum of positive squares in 2 ways, for example, as 47541025 + 97535376 = 6895^2 + 9876^2 .

It is a cyclic number.

It is not a de Polignac number, because 145076401 - 2¹¹ = 145074353 is a prime.

It is a super-2 number, since 2×145076401² = 42094324254225602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145076401.

It is not an unprimeable number, because it can be changed into a prime (145076471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747720 + ... + 747913.

It is an arithmetic number, because the mean of its divisors is an integer number (36643033).

Almost surely, 2^145076401 is an apocalyptic number.

It is an amenable number.

145076401 is a deficient number, since it is larger than the sum of its proper divisors (1495731).

145076401 is an equidigital number, since it uses as much as digits as its factorization.

145076401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495730.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 145076401 is about 12044.7665398712. The cubic root of 145076401 is about 525.4510421669.

The spelling of 145076401 in words is "one hundred forty-five million, seventy-six thousand, four hundred one".