145764741 has 4 divisors (see below), whose sum is σ = 194352992. Its totient is φ = 97176492.

The previous prime is 145764739. The next prime is 145764743. The reversal of 145764741 is 147467541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (145764739) and next prime (145764743).

It is not a de Polignac number, because 145764741 - 2¹ = 145764739 is a prime.

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 145764741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145764743) 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, 24294121 + ... + 24294126.

It is an arithmetic number, because the mean of its divisors is an integer number (48588248).

Almost surely, 2^145764741 is an apocalyptic number.

It is an amenable number.

145764741 is a deficient number, since it is larger than the sum of its proper divisors (48588251).

145764741 is an equidigital number, since it uses as much as digits as its factorization.

145764741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48588250.

The product of its digits is 94080, while the sum is 39.

The square root of 145764741 is about 12073.3069620548. The cubic root of 145764741 is about 526.2807623214.

The spelling of 145764741 in words is "one hundred forty-five million, seven hundred sixty-four thousand, seven hundred forty-one".