90345154 has 4 divisors (see below), whose sum is σ = 135517734. Its totient is φ = 45172576.

The previous prime is 90345131. The next prime is 90345169. The reversal of 90345154 is 45154309.

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., 68973025 + 21372129 = 8305^2 + 4623^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22586287 + ... + 22586290.

Almost surely, 2^90345154 is an apocalyptic number.

90345154 is a deficient number, since it is larger than the sum of its proper divisors (45172580).

90345154 is a wasteful number, since it uses less digits than its factorization.

90345154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45172579.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 90345154 is about 9505.0067858997. The cubic root of 90345154 is about 448.7126234184.

The spelling of 90345154 in words is "ninety million, three hundred forty-five thousand, one hundred fifty-four".