142155514 has 4 divisors (see below), whose sum is σ = 213233274. Its totient is φ = 71077756.

The previous prime is 142155509. The next prime is 142155521. The reversal of 142155514 is 415551241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 415551241 = 7 ⋅59364463.

It can be written as a sum of positive squares in only one way, i.e., 142014889 + 140625 = 11917^2 + 375^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35538877 + ... + 35538880.

Almost surely, 2^142155514 is an apocalyptic number.

142155514 is a deficient number, since it is larger than the sum of its proper divisors (71077760).

142155514 is an equidigital number, since it uses as much as digits as its factorization.

142155514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71077759.

The product of its digits is 4000, while the sum is 28.

The square root of 142155514 is about 11922.8987247229. The cubic root of 142155514 is about 521.9007288115.

The spelling of 142155514 in words is "one hundred forty-two million, one hundred fifty-five thousand, five hundred fourteen".