1455251951 has 2 divisors, whose sum is σ = 1455251952. Its totient is φ = 1455251950.

The previous prime is 1455251927. The next prime is 1455251957. The reversal of 1455251951 is 1591525541.

It is a strong prime.

It is an emirp because it is prime and its reverse (1591525541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1455251951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1455251957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727625975 + 727625976.

It is an arithmetic number, because the mean of its divisors is an integer number (727625976).

Almost surely, 2^1455251951 is an apocalyptic number.

1455251951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1455251951 is an equidigital number, since it uses as much as digits as its factorization.

1455251951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 38.

The square root of 1455251951 is about 38147.7646920498. The cubic root of 1455251951 is about 1133.2160843429.

The spelling of 1455251951 in words is "one billion, four hundred fifty-five million, two hundred fifty-one thousand, nine hundred fifty-one".