149206761 has 12 divisors (see below), whose sum is σ = 235113840. Its totient is φ = 90428280.

The previous prime is 149206723. The next prime is 149206781. The reversal of 149206761 is 167602941.

It is not a de Polignac number, because 149206761 - 2⁶ = 149206697 is a prime.

It is a super-2 number, since 2×149206761² = 44525315056222242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149206781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 753471 + ... + 753668.

It is an arithmetic number, because the mean of its divisors is an integer number (19592820).

Almost surely, 2^149206761 is an apocalyptic number.

149206761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

149206761 is a deficient number, since it is larger than the sum of its proper divisors (85907079).

149206761 is a wasteful number, since it uses less digits than its factorization.

149206761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507156 (or 1507153 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 149206761 is about 12215.0219402177. The cubic root of 149206761 is about 530.3910262570.

It can be divided in two parts, 1492067 and 61, that added together give a triangular number (1492128 = T₁₇₂₇).

The spelling of 149206761 in words is "one hundred forty-nine million, two hundred six thousand, seven hundred sixty-one".