151407449 has 4 divisors (see below), whose sum is σ = 151432464. Its totient is φ = 151382436.

The previous prime is 151407439. The next prime is 151407479. The reversal of 151407449 is 944704151.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 944704151 = 5189 ⋅182059.

It is a cyclic number.

It is not a de Polignac number, because 151407449 - 2¹² = 151403353 is a prime.

It is a super-2 number, since 2×151407449² = 45848431225375202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (151407439) 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, 2894 + ... + 17640.

It is an arithmetic number, because the mean of its divisors is an integer number (37858116).

Almost surely, 2^151407449 is an apocalyptic number.

It is an amenable number.

151407449 is a deficient number, since it is larger than the sum of its proper divisors (25015).

151407449 is a wasteful number, since it uses less digits than its factorization.

151407449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25014.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 151407449 is about 12304.7734233508. The cubic root of 151407449 is about 532.9859336143.

The spelling of 151407449 in words is "one hundred fifty-one million, four hundred seven thousand, four hundred forty-nine".