1552142251 has 8 divisors (see below), whose sum is σ = 1698102000. Its totient is φ = 1406991840.

The previous prime is 1552142239. The next prime is 1552142257. The reversal of 1552142251 is 1522412551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1552142251 - 2⁵ = 1552142219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552142257) 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, 198316 + ... + 205993.

It is an arithmetic number, because the mean of its divisors is an integer number (212262750).

Almost surely, 2^1552142251 is an apocalyptic number.

1552142251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1552142251 is a deficient number, since it is larger than the sum of its proper divisors (145959749).

1552142251 is a wasteful number, since it uses less digits than its factorization.

1552142251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404669.

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

The square root of 1552142251 is about 39397.2365909083. The cubic root of 1552142251 is about 1157.8274464161.

The spelling of 1552142251 in words is "one billion, five hundred fifty-two million, one hundred forty-two thousand, two hundred fifty-one".