201999496 has 8 divisors (see below), whose sum is σ = 378749070. Its totient is φ = 100999744.

The previous prime is 201999463. The next prime is 201999557. The reversal of 201999496 is 694999102.

It can be written as a sum of positive squares in only one way, i.e., 201242596 + 756900 = 14186^2 + 870^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12624961 + ... + 12624976.

Almost surely, 2^201999496 is an apocalyptic number.

It is an amenable number.

201999496 is a deficient number, since it is larger than the sum of its proper divisors (176749574).

201999496 is a wasteful number, since it uses less digits than its factorization.

201999496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25249943 (or 25249939 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 201999496 is about 14212.6526728827. The cubic root of 201999496 is about 586.7459428567.

The spelling of 201999496 in words is "two hundred one million, nine hundred ninety-nine thousand, four hundred ninety-six".