1901242533 has 16 divisors (see below), whose sum is σ = 2555784000. Its totient is φ = 1257123840.

The previous prime is 1901242531. The next prime is 1901242547. The reversal of 1901242533 is 3352421091.

It is not a de Polignac number, because 1901242533 - 2¹ = 1901242531 is a prime.

It is a super-2 number, since 2×1901242533² = 7229446338576512178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1901242533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901242531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340978 + ... + 346508.

It is an arithmetic number, because the mean of its divisors is an integer number (159736500).

Almost surely, 2^1901242533 is an apocalyptic number.

It is an amenable number.

1901242533 is a deficient number, since it is larger than the sum of its proper divisors (654541467).

1901242533 is a wasteful number, since it uses less digits than its factorization.

1901242533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6452.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1901242533 is about 43603.2399369588. The cubic root of 1901242533 is about 1238.8322628258.

The spelling of 1901242533 in words is "one billion, nine hundred one million, two hundred forty-two thousand, five hundred thirty-three".