120142537 has 2 divisors, whose sum is σ = 120142538. Its totient is φ = 120142536.

The previous prime is 120142513. The next prime is 120142549. The reversal of 120142537 is 735241021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65545216 + 54597321 = 8096^2 + 7389^2 .

It is an emirp because it is prime and its reverse (735241021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120142537 is a prime.

It is not a weakly prime, because it can be changed into another prime (120142037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60071268 + 60071269.

It is an arithmetic number, because the mean of its divisors is an integer number (60071269).

Almost surely, 2^120142537 is an apocalyptic number.

It is an amenable number.

120142537 is a deficient number, since it is larger than the sum of its proper divisors (1).

120142537 is an equidigital number, since it uses as much as digits as its factorization.

120142537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 120142537 is about 10960.9551134926. The cubic root of 120142537 is about 493.4376300773.

Adding to 120142537 its reverse (735241021), we get a palindrome (855383558).

The spelling of 120142537 in words is "one hundred twenty million, one hundred forty-two thousand, five hundred thirty-seven".