142056551 has 16 divisors (see below), whose sum is σ = 175257600. Its totient is φ = 112127328.

The previous prime is 142056547. The next prime is 142056553. The reversal of 142056551 is 155650241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142056551 - 2² = 142056547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142056553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41960 + ... + 45218.

It is an arithmetic number, because the mean of its divisors is an integer number (10953600).

Almost surely, 2^142056551 is an apocalyptic number.

142056551 is a deficient number, since it is larger than the sum of its proper divisors (33201049).

142056551 is a wasteful number, since it uses less digits than its factorization.

142056551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 142056551 is about 11918.7478788671. The cubic root of 142056551 is about 521.7795918719.

The spelling of 142056551 in words is "one hundred forty-two million, fifty-six thousand, five hundred fifty-one".