145265331 has 8 divisors (see below), whose sum is σ = 193792000. Its totient is φ = 96791112.

The previous prime is 145265303. The next prime is 145265353. The reversal of 145265331 is 133562541.

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

It is a de Polignac number, because none of the positive numbers 2^k-145265331 is a prime.

It is a super-2 number, since 2×145265331² = 42204032781079122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145265231) 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, 6115 + ... + 18108.

It is an arithmetic number, because the mean of its divisors is an integer number (24224000).

Almost surely, 2^145265331 is an apocalyptic number.

145265331 is a deficient number, since it is larger than the sum of its proper divisors (48526669).

145265331 is a wasteful number, since it uses less digits than its factorization.

145265331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26225.

The product of its digits is 10800, while the sum is 30.

The square root of 145265331 is about 12052.6068134657. The cubic root of 145265331 is about 525.6790379033.

The spelling of 145265331 in words is "one hundred forty-five million, two hundred sixty-five thousand, three hundred thirty-one".