145081407 has 8 divisors (see below), whose sum is σ = 195250176. Its totient is φ = 95816792.

The previous prime is 145081379. The next prime is 145081421. The reversal of 145081407 is 704180541.

145081407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145081407 - 2¹⁴ = 145065023 is a prime.

It is a super-2 number, since 2×145081407² = 42097229314199298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145081007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225663 + ... + 226304.

It is an arithmetic number, because the mean of its divisors is an integer number (24406272).

Almost surely, 2^145081407 is an apocalyptic number.

145081407 is a deficient number, since it is larger than the sum of its proper divisors (50168769).

145081407 is a wasteful number, since it uses less digits than its factorization.

145081407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452077.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 145081407 is about 12044.9743461744. The cubic root of 145081407 is about 525.4570858277.

The spelling of 145081407 in words is "one hundred forty-five million, eighty-one thousand, four hundred seven".