1351401551 has 2 divisors, whose sum is σ = 1351401552. Its totient is φ = 1351401550.

The previous prime is 1351401523. The next prime is 1351401599. The reversal of 1351401551 is 1551041531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1351401551 - 2²² = 1347207247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1351401551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351403551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675700775 + 675700776.

It is an arithmetic number, because the mean of its divisors is an integer number (675700776).

Almost surely, 2^1351401551 is an apocalyptic number.

1351401551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351401551 is an equidigital number, since it uses as much as digits as its factorization.

1351401551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 1351401551 is about 36761.4138873901. The cubic root of 1351401551 is about 1105.5917882750.

The spelling of 1351401551 in words is "one billion, three hundred fifty-one million, four hundred one thousand, five hundred fifty-one".