3903145551 has 48 divisors (see below), whose sum is σ = 5962125312. Its totient is φ = 2457302400.

The previous prime is 3903145541. The next prime is 3903145559. The reversal of 3903145551 is 1555413093.

It is a happy number.

3903145551 is a `hidden beast` number, since 3 + 90 + 3 + 14 + 5 + 551 = 666.

3903145551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3903145551 - 2¹⁵ = 3903112783 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 (3903145559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2039371 + ... + 2041283.

It is an arithmetic number, because the mean of its divisors is an integer number (124210944).

Almost surely, 2^3903145551 is an apocalyptic number.

3903145551 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3903145551 is a deficient number, since it is larger than the sum of its proper divisors (2058979761).

3903145551 is a wasteful number, since it uses less digits than its factorization.

3903145551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124 (or 2121 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 3903145551 is about 62475.1594715852. The cubic root of 3903145551 is about 1574.4839899930.

The spelling of 3903145551 in words is "three billion, nine hundred three million, one hundred forty-five thousand, five hundred fifty-one".