145561354 has 4 divisors (see below), whose sum is σ = 218342034. Its totient is φ = 72780676.

The previous prime is 145561313. The next prime is 145561363. The reversal of 145561354 is 453165541.

145561354 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 96491329 + 49070025 = 9823^2 + 7005^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36390337 + ... + 36390340.

Almost surely, 2^145561354 is an apocalyptic number.

145561354 is a deficient number, since it is larger than the sum of its proper divisors (72780680).

145561354 is an equidigital number, since it uses as much as digits as its factorization.

145561354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72780679.

The product of its digits is 36000, while the sum is 34.

The square root of 145561354 is about 12064.8810188912. The cubic root of 145561354 is about 526.0358734515.

The spelling of 145561354 in words is "one hundred forty-five million, five hundred sixty-one thousand, three hundred fifty-four".