147780137 has 8 divisors (see below), whose sum is σ = 149688000. Its totient is φ = 145884784.

The previous prime is 147780107. The next prime is 147780151. The reversal of 147780137 is 731087741.

147780137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 147780137 - 2²² = 143585833 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 147780137.

It is not an unprimeable number, because it can be changed into a prime (147780107) 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, 21914 + ... + 27852.

It is an arithmetic number, because the mean of its divisors is an integer number (18711000).

Almost surely, 2^147780137 is an apocalyptic number.

It is an amenable number.

147780137 is a deficient number, since it is larger than the sum of its proper divisors (1907863).

147780137 is a wasteful number, since it uses less digits than its factorization.

147780137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6255.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 147780137 is about 12156.4853884665. The cubic root of 147780137 is about 528.6951847376.

The spelling of 147780137 in words is "one hundred forty-seven million, seven hundred eighty thousand, one hundred thirty-seven".