145317246 has 16 divisors (see below), whose sum is σ = 291710208. Its totient is φ = 48259800.

The previous prime is 145317239. The next prime is 145317251. The reversal of 145317246 is 642713541.

It is a super-2 number, since 2×145317246² = 42234203970049032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43060 + ... + 46311.

It is an arithmetic number, because the mean of its divisors is an integer number (18231888).

Almost surely, 2^145317246 is an apocalyptic number.

145317246 is an abundant number, since it is smaller than the sum of its proper divisors (146392962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145317246 is a wasteful number, since it uses less digits than its factorization.

145317246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89647.

The product of its digits is 20160, while the sum is 33.

The square root of 145317246 is about 12054.7603045436. The cubic root of 145317246 is about 525.7416529279.

The spelling of 145317246 in words is "one hundred forty-five million, three hundred seventeen thousand, two hundred forty-six".