142513157 has 2 divisors, whose sum is σ = 142513158. Its totient is φ = 142513156.

The previous prime is 142513153. The next prime is 142513199. The reversal of 142513157 is 751315241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100120036 + 42393121 = 10006^2 + 6511^2 .

It is an emirp because it is prime and its reverse (751315241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142513157 - 2² = 142513153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142513153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71256578 + 71256579.

It is an arithmetic number, because the mean of its divisors is an integer number (71256579).

Almost surely, 2^142513157 is an apocalyptic number.

It is an amenable number.

142513157 is a deficient number, since it is larger than the sum of its proper divisors (1).

142513157 is an equidigital number, since it uses as much as digits as its factorization.

142513157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 29.

The square root of 142513157 is about 11937.8874596806. The cubic root of 142513157 is about 522.3380382149.

Adding to 142513157 its reverse (751315241), we get a palindrome (893828398).

The spelling of 142513157 in words is "one hundred forty-two million, five hundred thirteen thousand, one hundred fifty-seven".