145790972 has 6 divisors (see below), whose sum is σ = 255134208. Its totient is φ = 72895484.

The previous prime is 145790959. The next prime is 145790993. The reversal of 145790972 is 279097541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18223868 + ... + 18223875.

It is an arithmetic number, because the mean of its divisors is an integer number (42522368).

Almost surely, 2^145790972 is an apocalyptic number.

It is an amenable number.

145790972 is a deficient number, since it is larger than the sum of its proper divisors (109343236).

145790972 is a wasteful number, since it uses less digits than its factorization.

145790972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36447747 (or 36447745 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 145790972 is about 12074.3932352727. The cubic root of 145790972 is about 526.3123292664.

It can be divided in two parts, 1457 and 90972, that added together give a palindrome (92429).

The spelling of 145790972 in words is "one hundred forty-five million, seven hundred ninety thousand, nine hundred seventy-two".