1348155551 has 2 divisors, whose sum is σ = 1348155552. Its totient is φ = 1348155550.

The previous prime is 1348155547. The next prime is 1348155577. The reversal of 1348155551 is 1555518431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1348155551 - 2² = 1348155547 is a prime.

It is a super-2 number, since 2×1348155551² = 3635046779384227202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1348155521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674077775 + 674077776.

It is an arithmetic number, because the mean of its divisors is an integer number (674077776).

Almost surely, 2^1348155551 is an apocalyptic number.

1348155551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1348155551 is an equidigital number, since it uses as much as digits as its factorization.

1348155551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60000, while the sum is 38.

The square root of 1348155551 is about 36717.2377909886. The cubic root of 1348155551 is about 1104.7058862481.

The spelling of 1348155551 in words is "one billion, three hundred forty-eight million, one hundred fifty-five thousand, five hundred fifty-one".