142137770 has 16 divisors (see below), whose sum is σ = 256016808. Its totient is φ = 56817600.

The previous prime is 142137767. The next prime is 142137773. The reversal of 142137770 is 77731241.

142137770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142137767) and next prime (142137773).

It can be written as a sum of positive squares in 4 ways, for example, as 118352641 + 23785129 = 10879^2 + 4877^2 .

It is not an unprimeable number, because it can be changed into a prime (142137773) 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, 15272 + ... + 22748.

Almost surely, 2^142137770 is an apocalyptic number.

142137770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142137770 is a deficient number, since it is larger than the sum of its proper divisors (113879038).

142137770 is a wasteful number, since it uses less digits than its factorization.

142137770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9385.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 142137770 is about 11922.1545871541. The cubic root of 142137770 is about 521.8790131763.

The spelling of 142137770 in words is "one hundred forty-two million, one hundred thirty-seven thousand, seven hundred seventy".