153140421 has 8 divisors (see below), whose sum is σ = 233356864. Its totient is φ = 87508800.

The previous prime is 153140419. The next prime is 153140423. The reversal of 153140421 is 124041351.

It is an interprime number because it is at equal distance from previous prime (153140419) and next prime (153140423).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 153140421 - 2¹ = 153140419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 7292401 = 153140421 / (1 + 5 + 3 + 1 + 4 + 0 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153140423) 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, 3646180 + ... + 3646221.

It is an arithmetic number, because the mean of its divisors is an integer number (29169608).

Almost surely, 2^153140421 is an apocalyptic number.

It is an amenable number.

153140421 is a deficient number, since it is larger than the sum of its proper divisors (80216443).

153140421 is an equidigital number, since it uses as much as digits as its factorization.

153140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292411.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 153140421 is about 12374.9917575730. The cubic root of 153140421 is about 535.0116991648.

Adding to 153140421 its reverse (124041351), we get a palindrome (277181772).

The spelling of 153140421 in words is "one hundred fifty-three million, one hundred forty thousand, four hundred twenty-one".