1913254551 has 12 divisors (see below), whose sum is σ = 2976173928. Its totient is φ = 1177387344.

The previous prime is 1913254523. The next prime is 1913254573. The reversal of 1913254551 is 1554523191.

It is a happy number.

1913254551 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1913254551 - 2²¹ = 1911157399 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913254351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8176185 + ... + 8176418.

It is an arithmetic number, because the mean of its divisors is an integer number (248014494).

Almost surely, 2^1913254551 is an apocalyptic number.

1913254551 is a deficient number, since it is larger than the sum of its proper divisors (1062919377).

1913254551 is a wasteful number, since it uses less digits than its factorization.

1913254551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16352622 (or 16352619 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 1913254551 is about 43740.7653225227. The cubic root of 1913254551 is about 1241.4357612716.

The spelling of 1913254551 in words is "one billion, nine hundred thirteen million, two hundred fifty-four thousand, five hundred fifty-one".