145555274 has 16 divisors (see below), whose sum is σ = 223134912. Its totient is φ = 71194368.

The previous prime is 145555271. The next prime is 145555283. The reversal of 145555274 is 472555541.

It is not an unprimeable number, because it can be changed into a prime (145555271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12842 + ... + 21354.

It is an arithmetic number, because the mean of its divisors is an integer number (13945932).

Almost surely, 2^145555274 is an apocalyptic number.

145555274 is a deficient number, since it is larger than the sum of its proper divisors (77579638).

145555274 is a wasteful number, since it uses less digits than its factorization.

145555274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8701.

The product of its digits is 140000, while the sum is 38.

The square root of 145555274 is about 12064.6290452711. The cubic root of 145555274 is about 526.0285492945.

The spelling of 145555274 in words is "one hundred forty-five million, five hundred fifty-five thousand, two hundred seventy-four".