901912043 has 2 divisors, whose sum is σ = 901912044. Its totient is φ = 901912042.

The previous prime is 901912031. The next prime is 901912051. The reversal of 901912043 is 340219109.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 901912043 - 2¹⁸ = 901649899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 901911997 and 901912015.

It is not a weakly prime, because it can be changed into another prime (901912243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450956021 + 450956022.

It is an arithmetic number, because the mean of its divisors is an integer number (450956022).

Almost surely, 2^901912043 is an apocalyptic number.

901912043 is a deficient number, since it is larger than the sum of its proper divisors (1).

901912043 is an equidigital number, since it uses as much as digits as its factorization.

901912043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 901912043 is about 30031.8504757865. The cubic root of 901912043 is about 966.1726258830.

The spelling of 901912043 in words is "nine hundred one million, nine hundred twelve thousand, forty-three".