149864292469 has 4 divisors (see below), whose sum is σ = 156380131296. Its totient is φ = 143348453644.

The previous prime is 149864292451. The next prime is 149864292509. The reversal of 149864292469 is 964292468941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 964292468941 = 857 ⋅1125195413.

It is a cyclic number.

It is not a de Polignac number, because 149864292469 - 2⁵ = 149864292437 is a prime.

It is a super-2 number, since 2×149864292469² (a number of 23 digits) contains 22 as substring.

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 149864292469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149864290469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3257919379 + ... + 3257919424.

It is an arithmetic number, because the mean of its divisors is an integer number (39095032824).

Almost surely, 2^149864292469 is an apocalyptic number.

It is an amenable number.

149864292469 is a deficient number, since it is larger than the sum of its proper divisors (6515838827).

149864292469 is an equidigital number, since it uses as much as digits as its factorization.

149864292469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6515838826.

The product of its digits is 53747712, while the sum is 64.

The spelling of 149864292469 in words is "one hundred forty-nine billion, eight hundred sixty-four million, two hundred ninety-two thousand, four hundred sixty-nine".