155240270 has 16 divisors (see below), whose sum is σ = 279933840. Its totient is φ = 61984704.

The previous prime is 155240263. The next prime is 155240291. The reversal of 155240270 is 72042551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7952 + ... + 19331.

It is an arithmetic number, because the mean of its divisors is an integer number (17495865).

Almost surely, 2^155240270 is an apocalyptic number.

155240270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155240270 is a deficient number, since it is larger than the sum of its proper divisors (124693570).

155240270 is a wasteful number, since it uses less digits than its factorization.

155240270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27859.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 155240270 is about 12459.5453368090. The cubic root of 155240270 is about 537.4459523805.

The spelling of 155240270 in words is "one hundred fifty-five million, two hundred forty thousand, two hundred seventy".