148478837 has 6 divisors (see below), whose sum is σ = 160779042. Its totient is φ = 137057232.

The previous prime is 148478831. The next prime is 148478839. The reversal of 148478837 is 738874841.

It can be written as a sum of positive squares in 3 ways, for example, as 18541636 + 129937201 = 4306^2 + 11399^2 .

It is not a de Polignac number, because 148478837 - 2⁸ = 148478581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148478831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 439118 + ... + 439455.

It is an arithmetic number, because the mean of its divisors is an integer number (26796507).

Almost surely, 2^148478837 is an apocalyptic number.

It is an amenable number.

148478837 is a deficient number, since it is larger than the sum of its proper divisors (12300205).

148478837 is an equidigital number, since it uses as much as digits as its factorization.

148478837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878599 (or 878586 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 50.

The square root of 148478837 is about 12185.1892476071. The cubic root of 148478837 is about 529.5270932918.

The spelling of 148478837 in words is "one hundred forty-eight million, four hundred seventy-eight thousand, eight hundred thirty-seven".