1552981351 has 2 divisors, whose sum is σ = 1552981352. Its totient is φ = 1552981350.

The previous prime is 1552981343. The next prime is 1552981361. The reversal of 1552981351 is 1531892551.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1552981351 - 2³ = 1552981343 is a prime.

It is a super-3 number, since 3×1552981351³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1552981361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776490675 + 776490676.

It is an arithmetic number, because the mean of its divisors is an integer number (776490676).

Almost surely, 2^1552981351 is an apocalyptic number.

1552981351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552981351 is an equidigital number, since it uses as much as digits as its factorization.

1552981351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 40.

The square root of 1552981351 is about 39407.8843760992. The cubic root of 1552981351 is about 1158.0360522939.

The spelling of 1552981351 in words is "one billion, five hundred fifty-two million, nine hundred eighty-one thousand, three hundred fifty-one".