145942974 has 12 divisors (see below), whose sum is σ = 316209816. Its totient is φ = 48647652.

The previous prime is 145942969. The next prime is 145942997. The reversal of 145942974 is 479249541.

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 5 ways as a sum of consecutive naturals, for example, 4053954 + ... + 4053989.

It is an arithmetic number, because the mean of its divisors is an integer number (26350818).

Almost surely, 2^145942974 is an apocalyptic number.

145942974 is an abundant number, since it is smaller than the sum of its proper divisors (170266842).

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

145942974 is a wasteful number, since it uses less digits than its factorization.

145942974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8107951 (or 8107948 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 145942974 is about 12080.6859904560. The cubic root of 145942974 is about 526.4951772136.

The spelling of 145942974 in words is "one hundred forty-five million, nine hundred forty-two thousand, nine hundred seventy-four".