149201642972 has 6 divisors (see below), whose sum is σ = 261102875208. Its totient is φ = 74600821484.

The previous prime is 149201642971. The next prime is 149201642999. The reversal of 149201642972 is 279246102941.

It is a happy number.

It is a super-2 number, since 2×149201642972² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149201642971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18650205368 + ... + 18650205375.

It is an arithmetic number, because the mean of its divisors is an integer number (43517145868).

Almost surely, 2^149201642972 is an apocalyptic number.

It is an amenable number.

149201642972 is a deficient number, since it is larger than the sum of its proper divisors (111901232236).

149201642972 is a wasteful number, since it uses less digits than its factorization.

149201642972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37300410747 (or 37300410745 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 149201642972 in words is "one hundred forty-nine billion, two hundred one million, six hundred forty-two thousand, nine hundred seventy-two".