148437617 has 4 divisors (see below), whose sum is σ = 149799540. Its totient is φ = 147075696.

The previous prime is 148437613. The next prime is 148437637. The reversal of 148437617 is 716734841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95570176 + 52867441 = 9776^2 + 7271^2 .

It is a cyclic number.

It is not a de Polignac number, because 148437617 - 2² = 148437613 is a prime.

It is a super-2 number, since 2×148437617² = 44067452281277378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148437613) 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, 680798 + ... + 681015.

It is an arithmetic number, because the mean of its divisors is an integer number (37449885).

Almost surely, 2^148437617 is an apocalyptic number.

It is an amenable number.

148437617 is a deficient number, since it is larger than the sum of its proper divisors (1361923).

148437617 is a wasteful number, since it uses less digits than its factorization.

148437617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361922.

The product of its digits is 112896, while the sum is 41.

The square root of 148437617 is about 12183.4977325889. The cubic root of 148437617 is about 529.4780871452.

The spelling of 148437617 in words is "one hundred forty-eight million, four hundred thirty-seven thousand, six hundred seventeen".