145086031 has 4 divisors (see below), whose sum is σ = 145118272. Its totient is φ = 145053792.

The previous prime is 145086023. The next prime is 145086059. The reversal of 145086031 is 130680541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145086031 - 2³ = 145086023 is a prime.

It is a super-2 number, since 2×145086031² = 42099912782665922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145086061) 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, 8010 + ... + 18823.

It is an arithmetic number, because the mean of its divisors is an integer number (36279568).

Almost surely, 2^145086031 is an apocalyptic number.

145086031 is a deficient number, since it is larger than the sum of its proper divisors (32241).

145086031 is an equidigital number, since it uses as much as digits as its factorization.

145086031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32240.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 145086031 is about 12045.1662919198. The cubic root of 145086031 is about 525.4626681827.

The spelling of 145086031 in words is "one hundred forty-five million, eighty-six thousand, thirty-one".