149772061 has 8 divisors (see below), whose sum is σ = 151030880. Its totient is φ = 148517712.

The previous prime is 149772059. The next prime is 149772097. The reversal of 149772061 is 160277941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149772061 - 2¹ = 149772059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149772061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149772461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104095 + ... + 105523.

It is an arithmetic number, because the mean of its divisors is an integer number (18878860).

Almost surely, 2^149772061 is an apocalyptic number.

It is an amenable number.

149772061 is a deficient number, since it is larger than the sum of its proper divisors (1258819).

149772061 is a wasteful number, since it uses less digits than its factorization.

149772061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 149772061 is about 12238.1396053485. The cubic root of 149772061 is about 531.0600133381.

The spelling of 149772061 in words is "one hundred forty-nine million, seven hundred seventy-two thousand, sixty-one".