149078653 has 2 divisors, whose sum is σ = 149078654. Its totient is φ = 149078652.

The previous prime is 149078639. The next prime is 149078669. The reversal of 149078653 is 356870941.

149078653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126630009 + 22448644 = 11253^2 + 4738^2 .

It is a cyclic number.

It is not a de Polignac number, because 149078653 - 2¹⁷ = 148947581 is a prime.

It is equal to p_8395495 and since 149078653 and 8395495 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149078603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74539326 + 74539327.

It is an arithmetic number, because the mean of its divisors is an integer number (74539327).

Almost surely, 2^149078653 is an apocalyptic number.

It is an amenable number.

149078653 is a deficient number, since it is larger than the sum of its proper divisors (1).

149078653 is an equidigital number, since it uses as much as digits as its factorization.

149078653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 149078653 is about 12209.7769430895. The cubic root of 149078653 is about 530.2391859767.

The spelling of 149078653 in words is "one hundred forty-nine million, seventy-eight thousand, six hundred fifty-three".