145270874 has 16 divisors (see below), whose sum is σ = 252754368. Its totient is φ = 61329312.

The previous prime is 145270861. The next prime is 145270919. The reversal of 145270874 is 478072541.

It is a super-2 number, since 2×145270874² = 42207253665447752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76499 + ... + 78374.

It is an arithmetic number, because the mean of its divisors is an integer number (15797148).

Almost surely, 2^145270874 is an apocalyptic number.

145270874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145270874 is a deficient number, since it is larger than the sum of its proper divisors (107483494).

145270874 is a wasteful number, since it uses less digits than its factorization.

145270874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154949.

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 145270874 is about 12052.8367615263. The cubic root of 145270874 is about 525.6857240635.

The spelling of 145270874 in words is "one hundred forty-five million, two hundred seventy thousand, eight hundred seventy-four".