1901152345 has 16 divisors (see below), whose sum is σ = 2371944960. Its totient is φ = 1461254400.

The previous prime is 1901152343. The next prime is 1901152349. The reversal of 1901152345 is 5432511091.

It is not a de Polignac number, because 1901152345 - 2¹ = 1901152343 is a prime.

It is a super-2 number, since 2×1901152345² = 7228760477797998050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1901152343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22576 + ... + 65665.

It is an arithmetic number, because the mean of its divisors is an integer number (148246560).

Almost surely, 2^1901152345 is an apocalyptic number.

It is an amenable number.

1901152345 is a deficient number, since it is larger than the sum of its proper divisors (470792615).

1901152345 is a wasteful number, since it uses less digits than its factorization.

1901152345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88416.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1901152345 is about 43602.2057354900. The cubic root of 1901152345 is about 1238.8126739571.

The spelling of 1901152345 in words is "one billion, nine hundred one million, one hundred fifty-two thousand, three hundred forty-five".