145396046 has 4 divisors (see below), whose sum is σ = 218094072. Its totient is φ = 72698022.

The previous prime is 145396039. The next prime is 145396057. The reversal of 145396046 is 640693541.

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

It is a super-2 number, since 2×145396046² = 42280020384868232, which contains 22 as substring.

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, 36349010 + ... + 36349013.

It is an arithmetic number, because the mean of its divisors is an integer number (54523518).

Almost surely, 2^145396046 is an apocalyptic number.

145396046 is a deficient number, since it is larger than the sum of its proper divisors (72698026).

145396046 is an equidigital number, since it uses as much as digits as its factorization.

145396046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72698025.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 145396046 is about 12058.0282799469. The cubic root of 145396046 is about 525.8366656381.

The spelling of 145396046 in words is "one hundred forty-five million, three hundred ninety-six thousand, forty-six".