345011138 has 4 divisors (see below), whose sum is σ = 517516710. Its totient is φ = 172505568.

The previous prime is 345011137. The next prime is 345011143. The reversal of 345011138 is 831110543.

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

It can be written as a sum of positive squares in only one way, i.e., 234487969 + 110523169 = 15313^2 + 10513^2 .

It is not an unprimeable number, because it can be changed into a prime (345011137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86252783 + ... + 86252786.

Almost surely, 2^345011138 is an apocalyptic number.

345011138 is a deficient number, since it is larger than the sum of its proper divisors (172505572).

345011138 is a wasteful number, since it uses less digits than its factorization.

345011138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172505571.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 345011138 is about 18574.4754434681. The cubic root of 345011138 is about 701.3654558285.

The spelling of 345011138 in words is "three hundred forty-five million, eleven thousand, one hundred thirty-eight".